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a) Yeah. I'm not 100% sure. Just a bunsen flame, I think. Not sure about other... flames... b) True ;) c) Ah... I see. But you are! Here, have a cherry *hands you one* e) I know it should have a vertical slant, but you know how you have the pH down the vertical axis and the volume, I think...

Here's how I would do it: -Using 4.653g, find the number of mole using n=m/M -This = the no. mole of Choride ions. -Convert this no. mole to a mass to find the mass of chloride ions. -Divide this mass by 2.0g, then times by 100 to get the % you want for your answer...

Yea, you're right. They may have mixed the x and y coordinates up somehow. Isn't there a rule for finding the y-coordinate of the turning point as well? I don't remember what it is though, same as having x= -b/2a for the x coordinate... may help, may not. ..

Ok, I missed a prac where they did paper chromatography with smarties. So... not having any results, I was wondering: Does anyone know the specific colours (not ingredients, just colours) that are in smarties? Or, more specifically, purple smarties? And does anyone know the colours that are in...

^_^

a) Hm, ok, but isnt the flame a reducing agent...? b) I think so too, but my teacher likes to put it under the category of chromatography, strangely... c) Isotopes... Is that due to the neutrons? I wasn't aware neutrons had any effect on the energy levels because they're neutral in charge? May...

a) I wonder why the theoretical is different from the practical? b) K, so to clarify, it's possible for a reaction in an open system or irreversible/reversible reactions to reach equilibrium or reach completion... hmmm... c) Not being able to take away heat makes sense. Is my theory also...

What then do you think is the true statement of the 'theory'? So you're saying here is, if you know a function is symmetrical about the y axis, you would know that regardless of whether there was -x or not, there would always be no reflection/appear to be no reflection, right? I don't...

That was what I was thinking, jyu. That's the reason I can't do the question. Is there any way to do it with just the x-coordinate of the tp? =S

-Something I want to make clear: Says in my notes that flame tests are suitable for only a few metal cations... doesn't it mean metal atoms 'cause those are the ones excited? -Is electrophoresis an example of chromatography? It seems very different... and plus, I'm not aware that it has a...

Kewl, but what about the Cl?

So, basically you say... there will appear to be no error though there might have been...

I don't quite understand the point about photons...

I've been reading about equilibrium, and I have some questions. -If a reversible reacting system is NOT at equilibrium and must eventually reach this, are the irreversible (one way) reactions the ones (of all the reactions) that actually reach completion? -Are open systems examples of these...

yea, but then, there IS a lot to chemistry...

Ok. That much is clear, so applying to reactants only or products as well?

Heheh, then i think it's safer to say some reactions go to completion and some... don't :)

I see. that makes sense :) Maybe it just tends to like to oxidise things. You know they should tell us these exceptions, those equations where using oxidation numbers doesn't tell you much as to whether something is oxidant/reductant. I dont suppose you know any other exceptions worth watching...

Ok so this time you're saying you just get quantities of the reactants according to the mole ratio :confused: like I said before: 2 moles H2 reacting with 1 mole O2 to produce 2 H2. Right? Or are you sayin its reactants only... :confused: Are you saying the same thing each time, 'cause you...

Hey I remember this stuff ^^ But Hydrogen bonding, is that the polar bonds between H and F, O, N, (Cl?) only...? I think H-bonds are special in some way, but I dun remember